Title Adjustment and exploration of simulation parameters for the wave model in the Hualien sea area.
Dept Transportation Technology Research Center
Year 2024
Month 3
Price 200
Summary     This study utilizes the TaiCOMS system developed by our institute, employing WAM and SWAN to simulate far-field, nearfield,and nearshore wind and waves in the Hualien region. Different theories of the third-generation wind wave models in the SWAN model, including wave growth terms and white-capping dissipation parameters (Janssen, Komen, Westhuysen), are applied. The study focuses on four typhoon events (Chan-Hom, Yuanlin, Haima, and Maysak) during the years 111 and 112, which had a significant impact on Hualien. The differences in simulation results are compared. Furthermore, specific parameters from the Komen theory, including white-capping dissipation rate, PM spectrum average wave sharpness, and the power of the wave sharpness, are selected for a detailed analysis of the simulation results and parameter sensitivity. Based on the sensitivity comparison, two parameter combinations are proposed within the Komen theory. The simulation results are validated during the typhoon events Haima and Maysak, and compared with the original TaiCOMS simulation values to evaluate the improvement. This study provides valuable insights for ongoing research to enhance the simulation of wind and waves in harbor areas.
The achievements, benefits, and applications.
    The research results provide insights into the simulation and assessment of wind and wave conditions in the Hualien Harbor area, facilitating an understanding of the impact of various parameters on simulation outcomes. This information serves as a basis for improving subsequent TaiCOMS simulations and predictions. It is intended to benefit relevant authorities such as the Harbor Bureau, port management companies, and domestic and international shipping entities, enabling them to effectively manage port operations and disaster prevention through accurate marine meteorological information.
Post date 2024/03/28
View count: 150